
public class testrecursion {

	
	public static void main(String[] args) {
		
		int x = 100;
	System.out.println(	displayBin(x));
	

	}
	
	
	public static  String  displayBin(int input)
	{
	
		if (input!=0)
		{
		
			return displayBin(input/2) + Integer.toString(input%2);	
		}
		else
		{
			return "";
			
		}
		
		
	}
}
